org.knime.base.node.preproc.autobinner.apply
Class BinningCellFactory

java.lang.Object
  org.knime.base.node.preproc.autobinner.apply.BinningCellFactory

All Implemented Interfaces:

CellFactory

public class BinningCellFactory
extends Object
implements CellFactory

Author:

Heiko Hofer

Constructor Summary

BinningCellFactory(String name, int colIdx, PMMLDiscretize discretize)

Method Summary

DataCell[]	getCells(DataRow row) Get the new cells for a given row.
DataColumnSpec[]	getColumnSpecs() The column specs for the cells that are generated in the getCells() method.
void	setProgress(int curRowNr, int rowCount, RowKey lastKey, ExecutionMonitor exec) This method is called when a row has been processed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BinningCellFactory

public BinningCellFactory(String name,
                          int colIdx,
                          PMMLDiscretize discretize)

Parameters:

name - The name of the column

colIdx - The index of the column

discretize - Binning configuration

Method Detail

getCells

public DataCell[] getCells(DataRow row)

Get the new cells for a given row. These cells are incorporated into the existing row. The way it is done is defined through the ColumnRearranger using this object.

Specified by:

getCells in interface CellFactory

Parameters:

row - The row of interest.

Returns:

The new cells to that row.

getColumnSpecs

public DataColumnSpec[] getColumnSpecs()

The column specs for the cells that are generated in the getCells() method. This method is only called once, there is no need to cache the return value. The length of the returned array must match the length of the array returned by the getCells(DataRow) method and also the types must match, i.e. the type of the respective DataColumnSpec must be of the same type or a super type of the cell as returned by getCells(DataRow).

Specified by:

getColumnSpecs in interface CellFactory

Returns:

The specs to the newly created cells.

setProgress

public void setProgress(int curRowNr,
                        int rowCount,
                        RowKey lastKey,
                        ExecutionMonitor exec)

This method is called when a row has been processed. It allows the implementor to set progress in the execution monitor and also some meaningful progress message.

Note, you don't need to check exec.checkCanceled() in the implementation as this is done in the calling class.

Specified by:

setProgress in interface CellFactory

Parameters:

curRowNr - The number of the row just processed

rowCount - The total number of rows.

lastKey - The row's key.

exec - The execution monitor to report progress to.